There is no way to refresh the classpath after adding a library to gradle

[zSynx94]

I added a new library to my java project (org.lz4:lz4-java:1.8.0) but there is no way to get them indexed again.
I tried gradlew build and gradle --refresh-dependencies but it din't work.

Environment
Operating System: Windows 10 Enterprise LTSC 21H2
Visual Studio Code version: 1.85.2
Language Support for Java(TM) by Red Hat Version: 1.37.0
JDK: Amazon Corretto jdk1.8.0_432
Gradle Version: 4.7

Steps To Reproduce
Update/add dependencies to build.gradle file
Wait for it to update (nothing will happen)

Captures

[snjeza]

@zSynx94 I can't reproduce the issue. Could you attach a project example reproducing the error?

[linuxhelf]

i am having the same problem.
Neither the Task "Java: Reload Projects" nor the popup, that appears when changing the build.gradle, which wants to synchronize the classpath works for me.
Only "Java: Clean Java Language Server Workspace", which gets anoying in larger projects.

@snjeza
I have created an example project at https://github.com/linuxhelf/vscode-java-import
Steps to reproduce:

• Open project and wait for it to build
• see error in App.java
• uncomment the org.json import in app/build.gradle
• error in App.java is still present and cant be fixed by reload

What i found out while creating the example project:
This problem is only present with "java.gradle.buildServer.enabled": "off"
When using the gradle buildserver, both the popup and "Java: Reload Projects" correctly update the classpath.

@zSynx94 are you also using "java.gradle.buildServer.enabled": "off"?